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Based on the proposed ana- lytical general solution of the second-order Sylvester matrix equation, a parametric method of the state feedback eigenstructure assignment in a class of vibration second-order linear systems is presented.

基于二阶Sylvester矩阵方程的解析通解,给出了振动二阶线性系统的状态反馈特征结构配置设计参数化方法。

A new method is presented for elastic-plastic analysis and parametric shape optimization design of the mechanical structures.

提出并实现一种将参数化设计技术应用于考虑结构非线性特征的形状优化设计领域的新方法。

Parametric programming technique is applied to...

同时以加工特征为单元,采用参数化编程技术实现数控程序的派生式生成,提高了数控程序设计效率和质量,并有利于数控程序设计的自动化、智能化、模块化。

Substitute surface conception was introduced in the tolerance modeling. Intrinsic deviation between the substitute surface and the theoretical surface was described by vector function on the basis of the vector parametric representation of the theoretical surface.

引入替代表面的概念,基于理论表面矢量参数化表示,用矢函数来描述替代表面和理论表面之间的本质特征偏差。

Generalized rational parametric surface can be controlled precisely and flexible, and it is easy to model local features and 3D primitives.

广义有理参数曲面可以进行精确控制,不仅易于表示局部特征,还提供了更多的方法来精确生成三维图元。

Based on CAD/CAM/CAE software——I DEAS Master Series,the standard feature library suitable to accumulator type unit injector is built up.A research on its variable structure,parametric design and 3 dimensional structure FEA is carried on with advanced CAD/CAE technique.It ensures the successful design of accumulator type unit injector.

本文基于大型CAD/CAM/CAE软件I-DEASMasterSeries,采用先进的CAD/CAE技术,建立了适于蓄压式泵喷嘴的标准特征库,对其进行变结构、参数化设计及3维有限元结构计算研究,为蓄压式泵喷嘴结构的设计成功提供了可靠的保证。

An approach to feature-based parametric design for die and mould is proposed in this paper.

提出了一种基于特征的模具参数化设计方法。

This comprehensive standard defines all required aspects of 64Mb through 1Gb DDR SDRAMs with X4/X8/X16 data interfaces, including features, functionality, ac and dc parametrics, packages and pin assignments.

该标准定义了拥有 x4/x8/x16数据接口的64Mb 到1Gb DDR SDRAMS 的所有要求,包括引出端、地址、功能描述、特征、 AC 和 DC 参数、真值表和封装。

This comprehensive standard defines all required aspects of 256Mb through 4Gb DDR2 SDRAMs with x4/x8/x16 data interfaces, including pinout, addressing, functional description, features, ac and dc parametrics, truth tables, and packages.

该标准定义了拥有 x4/x8/x16数据接口的256Mb 到4Gb DDR2 SDRAMS 的所有要求,包括引出端、地址、功能描述、特征、 AC 和 DC 参数、真值表和封装。

Except for the great success of the conventional stochastic signal processing technology, there are some obvious deficiencies, especially when it's used in the complex nonlinear systems with addictive colored noise, or the parasitical noise, whose characteristics or parameters cannot be measured.

统计信号处理技术取得了很大的成功的后面,但是它本身又存在着明显的不足,尤其是处带有加性有色噪生的非线性系统、系统的寄生噪声的参数或者分布特征等无法取得的情况下,统计方法往往显得无能为力。

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推荐网络例句

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。